Alison, Our P. hookeri has ridges on the scape that appear spirally. Have not noticed any such ridges on the P. orbiculata. The two basal leaves are considerably smaller in P hookeri. Also, as Sal, said, P. hookeri has a much shorter scape. Gale -----Original Message----- From: Sally Rooney <[log in to unmask]> To: [log in to unmask] <[log in to unmask]> Date: Wednesday, October 24, 2001 9:10 PM Subject: Re: Platanthera hookeri >